Retrofit NPP Exhaust Onto 2015 2LT V6 - Page 4 - Camaro5 Chevy Camaro Forum / Camaro ZL1, SS and V6 Forums

VTSummit · 01-13-2016, 10:02 AM

I'm picking up my NPP setup from Callaway on Monday. I'll document how I install the controller, but the local junkyard sold me an accumulator with check valve for $7.

I'll run plastic tubing from an air suspension kit which is rated to handle pressure OR vacuum.
Isn't the NPP from a V8 Camaro a different size pipe than the V6? I thought we had to install an adaptor up front to make it work. I want to do this at home, so I'll have some stainless tubes done up to remove the secondary unmonitored cats at the same time.

forzasteve · 01-13-2016, 10:08 AM

Quote:

Originally Posted by VTSummit

I'm picking up my NPP setup from Callaway on Monday. I'll document how I install the controller, but the local junkyard sold me an accumulator with check valve for $7.

I'll run plastic tubing from an air suspension kit which is rated to handle pressure OR vacuum.
Isn't the NPP from a V8 Camaro a different size pipe than the V6? I thought we had to install an adaptor up front to make it work. I want to do this at home, so I'll have some stainless tubes done up to remove the secondary unmonitored cats at the same time.

Good luck with your project.

I do not know if the tubing size for the V8 is different than the V6. I would not be surprised if it is.

I assume you are going with Mild2Wild in a Box ... Yes, installing the vacuum accumulator is really a necessity. Something the Mild2Wild folks omitted to mention in their instructions. With the accumulator and check valve the vacuum installation will be as the manufacturer intended. Your installation is much more likely to work the way you want it to.

Steve

VTSummit · 01-13-2016, 02:41 PM

Quote:

Originally Posted by forzasteve

Good luck with your project.

I do not know if the tubing size for the V8 is different than the V6. I would not be surprised if it is.

I assume you are going with Mild2Wild in a Box ... Yes, installing the vacuum accumulator is really a necessity. Something the Mild2Wild folks omitted to mention in their instructions. With the accumulator and check valve the vacuum installation will be as the manufacturer intended. Your installation is much more likely to work the way you want it to.

Steve

I'm not using a kit- I'd rather do it myself the way I want it. The kits seem crazy overpriced for what they do. Mine will just be dual mode like my RS5- I swapped the R8 to manual control too.

Shawno72 · 01-13-2016, 02:56 PM

Quote:

Originally Posted by VTSummit

I'm not using a kit- I'd rather do it myself the way I want it. The kits seem crazy overpriced for what they do. Mine will just be dual mode like my RS5- I swapped the R8 to manual control too.

I'd like to see what you come up with

Jylee · 01-13-2016, 06:47 PM

No adaptor needed. The NPP will bolt to your CAT. I trimmed my diffuser, and follow the post "wire your NPP for $50". Good luck with your project.

Jack

VTSummit · 01-13-2016, 08:02 PM

Quote:

Originally Posted by Jylee

No adaptor needed. The NPP will bolt to your CAT. I trimmed my diffuser, and follow the post "wire your NPP for $50". Good luck with your project.

Jack

I thought for sure the V8 had bigger pipes, so I hope you're right! I looked over the post you suggested and came up with my plan. Plastic lines, vac reservoir and check valve from a Toyota Corolla, GM vacuum solenoid and a hidden rocker switch inside the center console storage compartment

Mluisi · 01-13-2016, 08:05 PM

Hey hawk which lights are those because I've been looking at that type. Brand? Are they bright?

SinginHawk · 01-14-2016, 06:19 AM

Quote:

Originally Posted by Mluisi

Hey hawk which lights are those because I've been looking at that type. Brand? Are they bright?

They are from Phastek Performance, and the U-Halo's are just the daylight running lamps. I installed HID bulbs (4300k to match the halo), which are as bright as any other headlamp, though they are projector so the light is "aimed" lower than a typical bulb.

Bledialb · 10-12-2016, 03:38 AM

Quote:

Originally Posted by KaBoom1701

Search in the LFX forums. I added a complete NPP system when I had my V6 Camaro.

How did you do that? I have the npp exhaust in place and I don't know where in the lfx engine should I tap my vacuum lines?? Pls help

Bledialb · 10-12-2016, 03:41 AM

Quote:

Originally Posted by Jylee

No adaptor needed. The NPP will bolt to your CAT. I trimmed my diffuser, and follow the post "wire your NPP for $50". Good luck with your project.

Jack

I have v6 too, where in the engine did you tap the vacum lines?

15RS2NV · 09-03-2019, 01:28 PM

I know it’s an old thread but informational:

I’ve never really knew much about it, but reading this whole thread, I’m glad my ‘15 RS came with NPP exhaust from the factory. I love the way it sounds. When I’m at the track, my car idles really quiet then when I race it perks right up. I get accused of having a V8 a lot.

idealer · 09-03-2019, 05:47 PM

mine is on 24/7 so it is awesome

Caniac27 · 09-04-2019, 07:15 AM

Quote:

Originally Posted by idealer

mine is on 24/7 so it is awesome

same! My 2013 LT2/RS came with factory NPP. Pulled the fuse and love the sound!

idealer · 09-04-2019, 08:14 AM

Quote:

Originally Posted by Caniac27

same! My 2013 LT2/RS came with factory NPP. Pulled the fuse and love the sound!

Yeah, it gave me a headache at first but once I got used to it. My wife and I love the sound and it is a head-turner. My best part is if I am following behind her in the morning as we both go to our separate jobs. The first startup sound in the morning is breathtaking. In my head, it is my black little Lambougini.

01-13-2016, 10:02 AM	#43
VTSummit Consistently inconsistent Drives: 2015 2LT Summit White Join Date: May 2015 Location: United States Posts: 1,364	I'm picking up my NPP setup from Callaway on Monday. I'll document how I install the controller, but the local junkyard sold me an accumulator with check valve for $7. I'll run plastic tubing from an air suspension kit which is rated to handle pressure OR vacuum. Isn't the NPP from a V8 Camaro a different size pipe than the V6? I thought we had to install an adaptor up front to make it work. I want to do this at home, so I'll have some stainless tubes done up to remove the secondary unmonitored cats at the same time. __________________ Thanks to MRR, I have some SWEET wheels! Thank you! 2015 2LT Ported TB, Ported intake, JACFAB intake spacer, Borla exhaust, IPF 91 tune, Complete 1/LE suspension, Brembo brakes, Goodridge lines, Elite catch can, CAI with Thermo-wrap, 275/40-20 x 10's all around, Z/28 spoiler, GM splitter, Alpine/Polk stereo with AudiControl interface.

09-03-2019, 01:28 PM	#53
15RS2NV Ponies are for girls Drives: 2015 RS LFX Red Hot A6 Join Date: Sep 2018 Location: Southern AZ Posts: 315 View My Garage	I know it’s an old thread but informational: I’ve never really knew much about it, but reading this whole thread, I’m glad my ‘15 RS came with NPP exhaust from the factory. I love the way it sounds. When I’m at the track, my car idles really quiet then when I race it perks right up. I get accused of having a V8 a lot. __________________ H&R 1.8/1.7” drop, Overkill 80mm + intake ported by AFS, 1" insulator MACE, Accel Super Coils, THR cai, JET MAF sensor, Hurst shifter handle, GPP strut tower brace, CI ice cube tray hood vents (functional) @SemperFiCamaro

09-03-2019, 05:47 PM	#54
idealer Drives: 2015 2LT Convertible Join Date: Oct 2015 Location: SC Posts: 130	mine is on 24/7 so it is awesome __________________ Still the one

01-13-2016, 06:47 PM	#47
Jylee Drives: 2012 2LT Join Date: Aug 2013 Location: Sugarland, TX Posts: 96	No adaptor needed. The NPP will bolt to your CAT. I trimmed my diffuser, and follow the post "wire your NPP for $50". Good luck with your project. Jack

01-13-2016, 08:05 PM	#49
Mluisi Drives: Red-Hot Join Date: Jan 2015 Location: New Jersey Posts: 87	Hey hawk which lights are those because I've been looking at that type. Brand? Are they bright?